The law lets Trump control the police department for a month, but how aggressive the federal presence will be and how it could play out remained open questions.

Trump's plan to address crime in D.C. calls for deploying National Guard troops along the National Mall overnight Wednesday ...

National Guard troops pulled up in front of the Washington Monument on Aug. 12. They weren't armed then, but they could be soon, Army officials said.

President Donald Trump's plan to address crime in Washington, D.C., calls for deploying federalized National Guard troops ...

Trump's plan to address crime in D.C. calls for deploying National Guard troops along the National Mall overnight Wednesday ...

Mayor Muriel Bowser sought to reassure residents in the nation's capital, adding that the National Guard deployment was unnecessary.

Donald Trump’s show of force likely to encounter only visitors and school children on summer vacations touring the capital’s ...